Murtogh of Aileach now became master of the situation. Thorlogh was old and could not last long; Dermid of Leinster was for ever estranged from him; the new arbitrary divisions, though made with the general consent, satisfied no one. With a powerful force he marched southward, restored to the elder branch of the O'Melaghlins the whole of Meath, defeated Thaddeus O'Brien, obliterated Ormond from the map, restored the old bounds of Thomond and Desmond, and placed his guest, the banished O'Brien, on the throne of Cashel. A hostile force, under Roderick O'Conor, was routed, and retreated to their own territory. The next year (A.D. 1154) was signalized by a fierce naval engagement between the galleys of King Thorlogh and those of Murtogh, on the coast of Innishowen. The latter, recruited by vessels hired from the Gael and Galls of Cantire, the Arran Isles, and Man, were under the command of MacScellig; the Connaught fleet was led by O'Malley and O'Dowda. The engagement, which lasted from the morning till the evening, ended in the repulse of the Connaught fleet, and the death of O'Dowda. The occurrence is remarkable as the first general sea-fight between vessels in the service of native Princes, and as reminding us forcibly of the lessons acquired by the Irish during the Danish period. During the two years of life—which remained to King Thorlogh O'Conor, he had the affliction of seeing the fabric of power, which had taken him nearly half a century to construct, abridged at many points, by his more vigorous northern rival. Murtogh gave law to territories far south of the ancient _esker_. He took hostages from the Danes of Dublin, and interposed in the affairs of Munster. In the year 1156, the closing incidents which signalized the life of Thorlogh More, was a new peace which he made between the people of Breffni, Meath, and Connaught, and the reception of hostages from his old opponent, the restored O'Brien. While this new light of prosperity was shining on his house, he passed away from this life, on the 13th of the Kalends of June, in the 68th year of his age, and the 50th of his government. By his last will he bequeathed to the clergy numerous legacies, which are thus enumerated by Geoffrey Keating: "namely, four hundred and forty ounces of gold, and forty marks of silver; and all the other valuable treasures he possessed, both cups and precious stones, both steeds and cattle and robes, chess-boards, bows, quivers, arrows, equipments, weapons, armour, and utensils." He was interred beside the high altar of the Cathedral of Clonmacnoise, to which he had been in life and in death a munificent benefactor.